Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632)
11/2010
11/24/2010CN201648139U Pure water production equipment with high recovery ratio
11/24/2010CN201648126U Energy-saving and emission-reduction device by utilizing flue gas to retreat circulatory water
11/24/2010CN201648125U Water softening treatment device
11/24/2010CN201648124U Materialized integrated variable-frequency intelligent water treatment device
11/24/2010CN201641609U Mine explosion-proof and intrinsically safe water boiler
11/24/2010CN101896436A A method of building of hard water and a builder system for a detergent composition
11/24/2010CN101896435A Methods of minimizing sulfate scale in oil field
11/24/2010CN101891308A Preservative for high chloride ion circulating water and application thereof
11/18/2010US20100292122 Sulfonic group-containing, maleic acid-based, water-soluble copolymer aqueous solution and powder obtained by drying the aqueous solution
11/17/2010CN201634538U Cooling circulating water treatment system specially used for natural gas compressor
11/17/2010CN201634536U RO (Reverse Osmosis) water purification device
11/16/2010CA2537398C Treatment of iron sulphide deposits
11/11/2010WO2010128322A1 Tagged scale inhibitors
11/11/2010US20100282692 Percolation filter system with a replaceable cartridge, a method for determining the depletion of a replaceable cartridge in a filter system and a kit integrating this method
11/11/2010US20100282677 Water softener system using nanofiltration to reclaim a portion of the regenerating sodium chloride
11/10/2010EP2121775B1 Process and polymer for preventing ba/sr scale with detectable phosphorus functionality
11/10/2010CN201628415U Cleaning, magnifying and energy-saving solar water heater
11/10/2010CN201626880U Solenoid coil of built-in E-cleaning device
11/10/2010CN101880390A Method for synthesizing polyaspartic acid derivatives by modifying multicomponent coprecipitation
11/10/2010CN101880094A Explosion-proof type sweep-frequency water softening device for mine
11/10/2010CN101880093A High-frequency ultra pulse three-dimensional semiconductor electrode water treatment reactor technology
11/10/2010CN101880092A Intrinsically-safe water-feeding and oxygen-adding treatment method of once-through boiler
11/10/2010CN101428912B Biodegradable scale inhibitor-carboxylic acid base-containing poly-asparagic acid derivant and method for producing the same
11/10/2010CN101219782B Method for producing slow-dissolve ball type sodium hexametaphosphate
11/09/2010CA2470633C Fractional deionization process
11/09/2010CA2456971C Composition for removing dissolved oxygen from a fluid
11/04/2010WO2010125434A1 Use of maleic acid homopolymers and salts thereof as scale-inhibiting and anti-adhesion agents
11/03/2010EP2246307A1 Water Treatment System
11/03/2010EP2158162B1 Container for a water treatment system
11/03/2010EP2118156B1 Process and polymer for preventing ba/sr scale with incorporated detectable phosphorus functionality
11/03/2010CN201620074U Water treatment device for scale removal of electric scraper
11/03/2010CN101875705A Polymer for use in the reduction of aluminosilicate scale in a bayer process
11/03/2010CN101875514A Scale inhibitor for low temperature multiple-effect distillation sea water desalting plants and preparation method thereof
11/03/2010CN101327991B Solid water treatment agent for recirculated cooling water system
11/03/2010CN101172721B Antisludging agent of reverse osmosis water treatment system
11/02/2010US7825074 Hydrolytically and hydrothermally stable consolidation or change in the wetting behavior of geological formations
11/02/2010US7823641 Collecting contaminated water having > 0.15% salts of chlorides, sulfates, carbonates of sodium, potassium, calcium, magnesium; separate into a first solution of increased sodium chloride and a second of decreased sodium chloride; using the first saturated solution for sealing oil/gas well casings
10/2010
10/28/2010WO2010122509A2 Methods and apparatus for controlling water hardness
10/28/2010WO2010122508A2 Catalytic water treatment method and apparatus
10/28/2010US20100273699 Use of homopolymers of maleic acid and its salts as scale-inhibiting agents and anti-stick agents
10/28/2010CA2755841A1 Methods and apparatus for controlling water hardness
10/28/2010CA2755837A1 Catalytic water treatment method and apparatus
10/27/2010EP2242728A1 Method of water treatment
10/27/2010CN201614329U 一种循环水系统的配置 Configuring a circulating water system
10/27/2010CN1919743B Recovery processing system for steam condensate
10/27/2010CN101870758A Polyether phosphate antisludging agent having poly ethoxylated long chain and preparation method thereof
10/27/2010CN101870530A Method for treating and recycling circulating wastewater
10/27/2010CN101870521A Method of reducing aluminosilicate dirt in alkali industrial process and composition thereof
10/27/2010CN101235145B Method for preparing glycine/aspartic acid copolymer used as green scale inhibitor
10/27/2010CN101088933B Method of raising concentration multiple of circulating water system
10/26/2010US7820057 forming a liquid mixture of water and a heterogenous particulate seed material under conditions or in the presence of one or more substances which cause the solute to be removed to crystallize on the surface of the seed material and separation by filtration through filter and a filter cake
10/26/2010CA2313361C Accessible well for brine tank
10/21/2010WO2010120240A1 Scaling, deposition and general copper corrosion elimination in closed cooling water systems
10/21/2010WO2010119417A1 An effective novel non - polymeric and non - fouling additive for inhibiting high - temperature naphthenic acid corrosion and method of using the same
10/21/2010US20100267596 Method for improving the hydrolysis stability of ionic liquids
10/21/2010US20100264361 Solid composition for treating water
10/21/2010US20100263689 Methods and apparatus for controlling water hardness
10/21/2010CA2758521A1 An effective novel non - polymeric and non - fouling additive for inhibiting high - temperature naphthenic acid corrosion and method of using the same
10/20/2010CN101865809A Simple and reliable physical scale inhibition effect detection method and physical scale inhibition method
10/20/2010CN101864047A Ultraviolet-labeled high-calcium-resistant high-pH scale inhibitor and preparation method thereof
10/20/2010CN101863561A Superhigh-temperature circulating water antisludging agent and application thereof
10/20/2010CN101439912B Water treatment technology of vehicle body welding process circulating cooling water system
10/19/2010US7815804 Method for treating wastewater or produced water
10/14/2010WO2010118425A1 Method and system for reduction of scaling in purification of aqueous solutions
10/14/2010WO2010059897A3 Composition and method for controlling copper discharge and erosion of copper alloys in industrial systems
10/14/2010CA2758320A1 Method and system for reduction of scaling in purification of aqueous solutions
10/13/2010CN201605198U 具净化、软化、活化水功能的净水器 With purification, softening, activated water purifier functions
10/13/2010CN101857312A Method and device for preventing and removing scales, removing oxygen, cleaning, sterilizing and removing algal by using ultrasonic waves
10/13/2010CN101857311A Multifunctional filter material for circulating water treatment and preparation method thereof
10/13/2010CN101412566B Green environment-protective scale inhibitor and use thereof
10/12/2010CA2547907C Cooling water scale and corrosion inhibition
10/07/2010WO2010114908A1 Compositions for the masking of malodor in agricultural compositions and methods of making and using thereof
10/07/2010US20100256317 Compositions for preventing or reducing aluminosilicate scale in industrial processes
10/06/2010CN101852073A Novel integration technique for improving recovery ratio of thick oil with high thickness and low yield
10/06/2010CN101851028A Preparation of scale removing and preventing agent for ash-removing water system
10/06/2010CN101850956A Production process of globular sodium hexametaphosphate
10/06/2010CN101575413B Method for synthesizing green scale inhibitor poly-asparagic acid through microwaves
09/2010
09/30/2010US20100243569 Steam boiler apparatus and operating method therefor
09/29/2010EP2233440A1 Removal of water solubilized organics
09/29/2010EP2231531A1 A method of building of hard water and a builder system for a detergent composition
09/29/2010CN101844834A Low-phosphorous reverse osmosis membrane antisludging agent
09/29/2010CN101844833A Ultraviolet labelled alkylphenol polyether scale inhibitor and preparation method thereof
09/29/2010CN101497480B Novel industrial water treatment agent and preparation thereof
09/29/2010CN101244869B Water treatment scale corrosion inhibitor, preparation method and application thereof
09/28/2010US7803278 treatment of aqueous systems; adding a mixture containing metal sulfide antiscaling agent selecting from iron sulfide, lead sulfide or zinc sulfide, tetrakis (hydroxymethyl) phosphonium sulphate, propargyl alcohol; used in enhanced oil recovery
09/28/2010CA2451204C Improved scale conditioning agents
09/23/2010WO2010106077A1 Composition for inhibiting calcium salt scale formation
09/23/2010WO2010105303A1 Treatment or remediation of natural or waste water
09/23/2010US20100235975 Solid treatment blocks for sanitary appliances
09/23/2010DE10212250B4 Vorrichtung zur Wasserenthärtung, insbesondere einer Haushaltsmaschine zum Reinigen von Gegenständen Apparatus for water softening, especially a household appliance for cleaning articles
09/23/2010CA2755868A1 Treatment or remediation of natural or waste water
09/23/2010CA2755758A1 Composition for inhibiting calcium salt scale formation
09/23/2010CA2754126A1 Stabilized biocidal composition
09/22/2010CN201589416U Dirt-free air-source water heater
09/22/2010CN201587888U Automatic medicine-feeding system for industrial circulating water
09/22/2010CN101838058A Scale inhibitor of ethylene device process water system and using method thereof
09/22/2010CN101838057A Multifunctional anti-incrustation corrosion inhibitor and preparation method thereof
09/22/2010CN101412567B Composite multi-component scale inhibitor for treating oil-field water
09/16/2010WO2009099485A8 Methods and systems for processing waste water
09/16/2010US20100230362 Fluid purification
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